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3D virtual experiments are applications of virtual reality in education. To improve the insufficient implementation of 3D virtual experiments, a 3D virtual experiment framework based on X3D and ActiveX is proposed. The implementation includes importing and exporting of components, loading and saving of experiment scenes, feedback of user interaction and collision detection. Moreover, control of the...
After studying the existing methods of collision detection and early warning, a vehicle auxiliary anti-collision warning system based on positioning in electronic map is proposed. In this system, OBD, GPS, vehicle sensor and wireless LAN technologies are used to obtain the driving information of a vehicle itself and other vehicles around, and map positioning technologies to display the positions of...
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